PHP array_walk() Function

The array_walk() function apply a user defined function to every element of an array. The user-defined function takes array’s values and keys as parameters.

Tip: To work with deeper arrays (an array inside an array), use the array_walk_recursive() function.

Syntax

 array_walk(array,myfunction,parameter...) 

Example

function myfunctiondemo($value,$key,$p)
{
echo "$key $p $value
";
}
$array=array("a"=>"Samuel","b"=>"Cooper","c"=>"Lachlan");
array_walk($array,"myfunctiondemo","has the value");

Output

a has the value Samuel
b has the value Cooper
c has the value Lachlan